[tex]\bf \qquad \qquad \textit{inverse proportional variation}\\\\
\textit{\underline{y} varies inversely with \underline{x}}\qquad \qquad y=\cfrac{k}{x}\impliedby
\begin{array}{llll}
k=constant\ of\\
\qquad variation
\end{array}\\\\
-------------------------------\\\\
\textit{area of a rectangle}\\\\
A=bh\quad
\begin{cases}
b=base\\
h=height
\end{cases}\implies \cfrac{A}{b}=h~~or~~\cfrac{A}{h}=b\quad
\begin{array}{llll}
A=constant~of\\
\qquad variation
\end{array}[/tex]
